Friday, January 7, 2011

Subsidence

Subsidence is the motion of a surface (usually, the Earth's surface) as it shifts downward relative to a datum such as sea-level. The opposite of subsidence is uplift, which results in an increase in elevation. Ground subsidence is of concern to geologists, structural engineers and surveyors.

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Dobro

  Dobro is an American brand of resonator guitars owned by Gibson and manufactured by its subsidiary Epiphone . The term "dobro&quo...